In the heydays of the Cold War at a time of particular tension, two days after the Pope John Paul II assassination attempt in Rome instigated by the Bulgarian/Soviet Secret Services, was the moment of one of the most scaring naval situations in the Cold War, Just when the Clemenceau CVBG and his reduced peacetime escort was sailing from Toulon for the exercise Coriolan, was detected a submarine contact by the ASW picket (DDs Georges Leygues and Guepratte) only 50 nautical miles from Toulon and actively stalking the carrier group. The subsequent Operation Lancette was launched, resulting in the chase of the unknow submarine continuosly for more than eighteen hours and with the submarine alternating creep speeds with peaks of 28-30 knots and even passing below the Georges Leygues towed sonar array. La Royale (French Navy) employed both forward escort destroyers, Lynx helicopters and Atlantic ASW planes based in the very near BAN Nimes-Garons, and at last forced she to surfacing. Ultimately she was visually identified on surface at night from a Lynx helicopter of the Georges Leygues as a Soviet Victor-type SSN and compelled to quit the area. But this scenario represents the posibility of the things going wrong and hot, and both sides firing in anger at the enemy forces. This scenario also could gives an idea of the difficult submarine hunting, the difficult of hunting surface ships with submarines without long range target determination, the limited sonar ranges and convergence zone feasability on a sea with high levels of salinity and density, the high limitations of small diesel-electric submarines employed as hunter-killers against SSN (the French SSN force was then yet two years on the future), and about the necessity of employing half of the French Aeronavale ASW forces to catch only one submarine, even when she was fortunately emplaced very near to a main ASW air base.

This scenario is designed for the EC2003 MEDC Battleset and the official HCE database (HCDB-111122 or later).